학술논문
Propagation and generation of Josephson radiation in superconductor/insulator superlattices alternately containing two different barriers
Document Type
Periodical
Author
Source
IEEE Transactions on Magnetics IEEE Trans. Magn. Magnetics, IEEE Transactions on. 23(2):1154-1157 Mar, 1987
Subject
Language
ISSN
0018-9464
1941-0069
1941-0069
Abstract
The sine-Gordon equation for a Josephson coupled superconductor/insulator superlattice is derived using a Lagrangian formalism. This equation has essentially the same form as that given eariler by Kulik for a single Josephson junction but with different parameters. For the case of S/I superlattices alternately containing two different barrier thicknesses, the behavior of the propagation and generation of the Josephson radiation is governed by two coupled sine-Gordon equations, which results in two photon branches separated by a frequency gap. Some potential applications of these structures, involving increased outputs of the Josephson radiation and two hand filters, are discussed.